Greg is a 12-year veteran of the advertising industry, where his music and voice can be heard on numerous campaigns. Most recently, music credits include Blue Shield, State Farm, Radio Shack, and Hyundai. Greg's music has been featured on the 2015 Emmy Awards, Saturday Night Live, The Michael Bolton Sexy Valentine's Day Special for Netflix, numerous reality shows, and on hundreds of mobile game soundtracks. As a voice actor, when he's not voicing video game characters, Greg can be heard on campaigns for McDonald's, Domino's, Farmer's Insurance, Honda, Mini Cooper, and Vivint.

Music and performing were always a big part of Greg's life growing up in the suburbs of Chicago, where he began playing piano at the age of six. His love for the arts continued to develop during his undergraduate years at Stanford University, where he directed the Stanford Fleet Street Singers, an all-male acapella group, served as vocal director for student theater productions, and performed as the very first musical improvisor for the Stanford improv group, the SIMPS.

After moving to Los Angeles, Greg worked at Dreamworks as a computer tech while pursuing creative opportunites in the Los Angeles theater scene. He worked on several productions at East West Players before finding himself at the Kodak Theater as the musical director/conductor of The Ten Commandments, a stage musical starring Val Kilmer.

Shortly after the closing of The Ten Commandments, Greg was brought on to music direct Eric Whitacre's Paradise Lost: Shadows and Wings at the Boston Court Theater in Pasadena. He was then given the opportunity to perform with the show on the stages of Carnegie Hall, The Auditorium Theater, and Disney Concert Hall. For his work on Paradise Lost he was nominated for an L.A. Ovation Award and also received the Backstage West Garland award for Best Musical Director.